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Home › Buick › 2021 › Envision Preferred, AWD › Repair and Diagnosis › Brakes › Traction Control › Antilock Brake System › Diagnostic Information and Procedures › DTC P215A › Circuit/System Verification

Circuit/System Verification

  1. Test drive the vehicle in a straight line at a speed greater than 20 km/h (13 MPH).
  2. Verify all scan tool Wheel Speed Sensor parameters are within 1.6 km/h (1 MPH) of each other.
    • If any parameter is not within 1.6 km/h (1 MPH) of each other 

      Refer to Circuit/System Testing.

    • Go to next step: If each parameter is within 1.6 km/h (1 MPH) of each other 
  3. All OK.
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